Figure 2From: A facile approach to synthesize SiO2 · Re2O3 (Re = Y, Eu, La, Sm, Tb, Pr) hollow sphere and its application in drug releaseHRTEM images and EDS pattern of SiO 2 · Eu 2 O 3 HSs. (A) Mesoporous structure of SiO2 · Eu2O3. (B) The interplanar spacing of the (001) plane of Eu2O3. (C, D) EDS pattern and results of SiO2 · Eu2O3 HSs, respectively.Back to article page